Customer Renewable Programs

Customer Energy Resource (CER) Equipment

Hawaiian Electric has adopted the IEEE 1547-2018 standard for customer energy resource (CER) systems to interconnect and operate within Hawaiian Electric's service territory. Our Source Requirement Document Version 2.0 ("SRD V2.0") requires that equipment meet the technical specifications and standards as specified in IEEE 1547-2018 for normal operating performance (Category B) and abnormal operating performance (Category III). Also, Hawaiian Electric will require additional certification requirements specified in SRD V2.0 that are necessary to support the safe and reliable operation of Hawaii's grids. These higher reliability requirements are required, in part, due to the high levels of legacy CER systems.

Until July 1, 2021, during a transition, we will continue to accept inverters certified to the UL 1741 SA standard using the older SRD V1.1 certification requirements. After July 1, 2021, we will only allow equipment certified to the current IEEE 1547.1-2020 standard using the SRD V2.0 (or higher) certification requirements.

If you have any questions, please contact us at DER-Qualify@hawaiianelectric.com.


CER Equipment Certifications

Two certifications will be accepted until July 1, 2021:

  1. Option 1 - SRD V1.1 - The certification requirement for Underwriters Laboratories Standard 1741, Supplement A (“UL-1741 SA”), using SRD V1.1, or
  2. Option 2 - SRD 2.0 - The latest certification requirement for IEEE 1547-2018, using the 1547.1-2020 testing protocol with SRD V2.0.

After June 30, 2021, only the SRD 2.0 (Option 2) certification will be accepted. Please note that we may periodically update SRD certification requirements. Please contact DER-Qualify@hawaiianelectric.com for the latest updates and to verify the latest certification requirements and procedures.


Grid Support Utility Interactive Inverters

Hawaiian Electric maintains a list of qualified equipment that meets the criteria for performing necessary Grid Support Utility Interactive functions. If your chosen equipment is not on this list, we encourage you to check whether the manufacturer plans to certify their equipment for use in Hawaii.

All equipment must be formally certified to perform the Grid Support Utility Interactive Inverter functions required in Oahu Rule 14H (PDF)/Maui County Rule 14H (PDF)/Hawaii Island Rule 14H (PDF) at the time of the interconnection application.

We review submitted information before equipment can be added to the Qualified Equipment List. We do not confirm manufacturers' self-reported information. The equipment on this list has undergone tests to achieve minimal safety and performance standards. We make no claim or warranty of the equipment’s safety, performance or durability. All those considering installing solar energy systems are encouraged to conduct their own research.

The Qualified Equipment List is updated on the 1st and 15th of each month. After January 1, 2022, the Company will transition to a single list of qualified equipment that meets the IEEE 1547.1-2020 and SRD V2.0 or greater standards.

If you have any questions, please contact us at DER-Qualify@hawaiianelectric.com.


Background

State-of the-art customer energy resource systems have special capabilities that support the electric grid. Unlike older legacy systems, newer equipment that meets the IEEE 1547-2018 standard can control the flow of electricity, which is beneficial to all customers.

To assure customers that CER systems are performing as designed, we have a monitoring program to evaluate pre-existing and post-installation grid conditions that may impact the performance of rooftop solar systems. Customers will benefit from the monitoring program by having faster interconnection while Hawaiian Electric continuously monitors the conditions on the grid to ensure the safe and reliable operations for all customers.

Please refer to our Locational Value Map for more information about the Customer Energy Resource systems in your area.